xor_gen(9)

💅 xor_gen(9) 💅 — the Kernel API Manual, but make it fashion ✨

okay so bestie, this is the xor_gen(9) glow-up: same facts, same rules, infinitely more group-chat energy. let’s get into it 🫶

🌸 NAME 🌸

xor_gen — generate RAID-style XOR information 🎀

🦋 SYNOPSIS 🦋

here’s the signature, and yes we’re keeping every space and comma exactly as-is:

void xor_gen (void *dest , void **srcs , unsigned int src_cnt , unsigned
int bytes );

🎀 ARGUMENTS 🎀

the whole cast, no skips:

• dest — destination vector 💖
• srcs — source vectors ✨
• src_cnt — number of source vectors 🔢
• bytes — length in bytes of each vector 📏

✨ DESCRIPTION ✨

so what it does: performs the bit-wise XOR operation into dest for each of the src_cnt vectors in srcs, for a length of bytes bytes. iconic behavior, truly. 💅

but okay, the rules are the rules:

• src_cnt must be non-zero.
• the memory pointed to by dest and each member of srcs must be at least 64-byte aligned.
• bytes must be non-zero and a multiple of 512.

bestie, this is not a vibe suggestion — those alignment and size conditions are mandatory 😭

💀 NOTE 💀

for typical RAID uses, dest either needs to be zeroed, or filled with the first disk, which then needs to be removed from srcs. iykyk 🫶

🔥 SEE ALSO 🔥

• Kernel file ./lib/raid/xor/xor-core.c + xor_register(9), xor_force(9) — the whole squad 💜

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💖 source/version: ./lib/raid/xor · date: October 2026 · title: xor_gen(9) — and that’s the whole page, bestie 🎀